Re: [PATCH v2 mvebu + mvebu/dt64 1/6] firmware: turris-mox-rwtm: fix reply status decoding function

From: Andrew Lunn
Date: Wed May 05 2021 - 12:20:53 EST


On Wed, May 05, 2021 at 06:04:33PM +0200, Marek Behún wrote:
> On Mon, 3 May 2021 14:22:49 +0200
> Andrew Lunn <andrew@xxxxxxx> wrote:
>
> > On Thu, Apr 29, 2021 at 10:36:31AM +0200, Pali Rohár wrote:
> > > From: Marek Behún <kabel@xxxxxxxxxx>
> > >
> > > The status decoding function mox_get_status() currently contains a dead
> > > code path: if the error status is not MBOX_STS_SUCCESS, it always
> > > returns -EIO, so the comparison to MBOX_STS_FAIL is never executed and
> > > we don't get the actual error code sent by the firmware.
> > >
> > > Fix this.
> > >
> > > Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
> > > Fixes: 389711b37493 ("firmware: Add Turris Mox rWTM firmware driver")
> >
> > You have put a fixes tag here, meaning you want it in stable? How does
> > dead code elimination fulfil the stable requirements?
> >
> > Do any of these changes contain real fixes?
> >
> > Andrew
>
> Andrew, this is not dead code elimination.

Please word you commit message differently.

The status decoding function mox_get_status() currently contains an
incorrect check: ...

Andrew